{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "84511256",
    "entityType": "User",
    "nonce": "0xf2a12d6d3aaf616cd3e61cb28ae0c794e724b2d86cac3524e4a37a5c306b60e5",
    "signature": "0xec4c6e29ca78fd5120b79bd1114e79641fa958b5c7baa04d3635e1e1040d75f6427140958ee6c7e4af92bf97297d6216821dcacd3508ca138dd5cd64963ec6a21c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}